<?php
$allowedExts = array("gif", "jpeg", "jpg", "png", "rar", "zip", "pdf", "msword");
$temp = explode(".", $_FILES["file"]["name"]);
$extension = end($temp);

if (($_FILES["file"]["type"] == "image/gif" )                      ||
	($_FILES["file"]["type"] == "image/jpeg")                      ||   
	($_FILES["file"]["type"] == "image/pjpeg")                     || 
	($_FILES["file"]["type"] == "application/zip")                 || 
	($_FILES["file"]["type"] == "application/x-rar-compressed")    || 
	($_FILES["file"]["type"] == "application/pdf")                 || 
	($_FILES["file"]["type"] == "application/msword")              || 
	($_FILES["file"]["type"] == "application/vnd.openxmlformats-officedocument.wordprocessingml.document")
 && ($_FILES["file"]["size"] < 1000000)
 && in_array($extension, $allowedExts))
  {
  if ($_FILES["file"]["error"] > 0)
    {
    echo "Return Code: " . $_FILES["file"]["error"] . "<br>";
    }
  else
    {
    echo "Upload: "    .  $_FILES["file"]["name"] . "<br>";
    echo "Type: "      .  $_FILES["file"]["type"] . "<br>";
    echo "Size: "      . ($_FILES["file"]["size"] / 1024) . " kB<br>";
    echo "Temp file: " .  $_FILES["file"]["tmp_name"] . "<br>";

    if (file_exists("upload/" . $_FILES["file"]["name"]))
      {
      echo $_FILES["file"]["name"] . " already exists. ";
      }
    else
      {
      move_uploaded_file($_FILES["file"]["tmp_name"],
      "upload/" . $_FILES["file"]["name"]);
      echo "Stored in: " . "upload/" . $_FILES["file"]["name"];
      }
    }
  }
else
  {
  echo "Invalid file";
  }
?>